发明授权
- 专利标题： Voltage comparator
- 专利标题（中）： 电压比较器
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申请号： US816676申请日： 1986-01-03
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公开(公告)号： US4665326A公开(公告)日： 1987-05-12
- 发明人: John C. Domogalla
- 申请人： John C. Domogalla
- 申请人地址： TX Dallas
- 专利权人： Texas Instruments, Inc.
- 当前专利权人： Texas Instruments, Inc.
- 当前专利权人地址： TX Dallas
- 主分类号： H03M1/00
- IPC分类号： H03M1/00 ; H03K5/24 ; H03K5/153
摘要：
A voltage comparator for an analog to digital converter is provided which includes several differential amplifier stages connected in cascade that determine the existence of a voltage difference between the two input signals and amplify this voltage difference successively. The comparator further includes offset correction voltage circuits which are connected to each differential amplifier stage and allow for the correction of errors caused by the mismatching of the devices internal to each of the differntial amplifier stages.